74AHCT14T14-13 Equivalent & Substitute Parts

Part Overview

The 74AHCT14T14-13 is a 6-channel inverter logic IC manufactured by Diodes Incorporated in 14-TSSOP surface mount packaging. This part operates within the 4.5V to 5.5V supply voltage range and is designed for general-purpose digital logic inversion applications. The device is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer improved specifications, or when design requirements necessitate enhanced performance characteristics such as reduced propagation delay or lower quiescent current.

Key Parameters

Parameter	Value	Unit
Logic Type	Inverter	—
Number of Circuits	6	—
Number of Inputs	1	—
Voltage - Supply	4.5V ~ 5.5V	V
Current - Quiescent (Max)	20	µA
Current - Output High, Low	8mA, 8mA	mA
Input Logic Level - Low	0.5V ~ 0.6V	V
Input Logic Level - High	1.9V ~ 2.1V	V
Max Propagation Delay @ 5V, 50pF	10	ns
Operating Temperature	-40°C ~ 125°C	°C
Mounting Type	Surface Mount	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the 74AHCT14T14-13 is determined by the following critical parameters:

Mandatory Matching Parameters:

Logic Type: Inverter
Number of Circuits: 6
Number of Inputs: 1
Package / Case: 14-TSSOP (0.173", 4.40mm Width)
Voltage - Supply: 4.5V ~ 5.5V
Input Logic Level - Low: 0.5V ~ 0.6V
Input Logic Level - High: 1.9V ~ 2.1V
Current - Output High, Low: 8mA, 8mA
Mounting Type: Surface Mount

Allowable Variations:

Current - Quiescent (Max): May be lower than 20 µA
Max Propagation Delay: May be lower than 10 ns
Operating Temperature: May extend beyond -40°C ~ 125°C
Features: Schmitt Trigger input is an enhancement, not a restriction
Product Status: Active or Obsolete parts are functionally equivalent
Manufacturer: Any qualified manufacturer

The substitute parts listed below meet all mandatory matching parameters and represent direct functional equivalents across multiple manufacturers including Nexperia USA Inc., Texas Instruments, onsemi, and NXP USA Inc.

Parameter Comparison

Part Number	Manufacturer	Quiescent Current (Max)	Propagation Delay @ 5V, 50pF	Operating Temperature	Features	Product Status	Packaging
74AHCT14T14-13	Diodes Incorporated	20 µA	10 ns	-40°C ~ 125°C	—	Active	Tape & Reel (TR)
74AHCT14PW,118	Nexperia USA Inc.	2 µA	8 ns	-40°C ~ 125°C	Schmitt Trigger	Active	Tape & Reel (TR)
SN74AHCT14PWR	Texas Instruments	2 µA	8 ns	-40°C ~ 85°C	Schmitt Trigger	Active	Cut Tape (CT) & Digi-Reel®
74AHCT14PW-Q100,11	Nexperia USA Inc.	2 µA	8 ns	-40°C ~ 125°C	Schmitt Trigger	Active	Tape & Reel (TR)
74VHCT14AMTC	onsemi	2 µA	9.6 ns	-40°C ~ 85°C	Schmitt Trigger	Obsolete	—
74VHCT14AMTCX	onsemi	2 µA	9.6 ns	-40°C ~ 85°C	Schmitt Trigger	Active	Cut Tape (CT) & Digi-Reel®
74VHCT14PW,118	NXP USA Inc.	2 µA	8 ns	-40°C ~ 125°C	Schmitt Trigger	Active	—
MC74VHCT14ADTR2G	onsemi	2 µA	9.6 ns	-55°C ~ 125°C	Schmitt Trigger	Active	Tape & Reel (TR)
NLV74VHCT14ADTR2G	onsemi	2 µA	9.6 ns	-55°C ~ 125°C	Schmitt Trigger	Obsolete	Tape & Reel (TR)
SN74AHCT14PW	Texas Instruments	2 µA	8 ns	-40°C ~ 85°C	Schmitt Trigger	Discontinued at DiGi Electronics	Tube
SN74AHCT14QPWRG4Q1	Texas Instruments	2 µA	8 ns	-40°C ~ 125°C	Schmitt Trigger	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range):

The 74AHCT14PW,118 (Nexperia USA Inc.), 74AHCT14PW-Q100,11 (Nexperia USA Inc. with AEC-Q100 automotive qualification), 74VHCT14PW,118 (NXP USA Inc.), and SN74AHCT14QPWRG4Q1 (Texas Instruments with AEC-Q100 automotive qualification) are direct functional equivalents with active product status and operating temperature ranges that match or exceed the original specification of -40°C ~ 125°C. These parts feature Schmitt Trigger inputs, reduced quiescent current (2 µA versus 20 µA), and improved propagation delay characteristics (8 ns versus 10 ns).

Secondary Substitutes (Active Status, Limited Temperature Range):

The SN74AHCT14PWR (Texas Instruments) and 74VHCT14AMTCX (onsemi) are functionally equivalent with active product status but operate within a reduced temperature range of -40°C ~ 85°C. These parts are suitable for applications where the full -40°C ~ 125°C range is not required.

Extended Temperature Range Option:

The MC74VHCT14ADTR2G (onsemi) extends the operating temperature range to -55°C ~ 125°C and is available with AEC-Q100 automotive qualification, making it suitable for applications requiring enhanced temperature performance.

Obsolete Parts (Not Recommended for New Designs):

The 74VHCT14AMTC (onsemi) and NLV74VHCT14ADTR2G (onsemi) carry obsolete product status and should not be selected for new designs despite functional equivalence.

Discontinued Parts (Limited Availability):

The SN74AHCT14PW (Texas Instruments) is discontinued at DiGi Electronics and should be avoided unless existing inventory is available through alternative channels.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 74AHCT14T14-13 with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts maintain identical logic type (6-channel inverter), package (14-TSSOP), supply voltage range (4.5V ~ 5.5V), input logic levels, and output current specifications. No circuit modifications are required for functional equivalence.

Q: What is the difference between the 74AHCT and 74VHCT series?

A: Both series are 6-channel inverter logic ICs with identical functional specifications and package formats. The primary differences are manufacturer-specific implementations and propagation delay characteristics. The 74AHCT series typically achieves 8 ns propagation delay, while the 74VHCT series achieves 9.6 ns. Both meet the original 10 ns specification.

Q: Why do some substitute parts have lower quiescent current (2 µA) compared to the original (20 µA)?

A: Lower quiescent current represents an improvement in power efficiency and is a direct benefit. The original specification of 20 µA is a maximum limit; substitute parts that operate at 2 µA are fully compatible and provide superior performance in this parameter.

Q: Are Schmitt Trigger inputs on substitute parts compatible with standard logic inputs?

A: Yes. Schmitt Trigger inputs are a superset of standard logic inputs. They provide hysteresis for improved noise immunity while maintaining full compatibility with standard logic signal levels. The input logic level thresholds (0.5V ~ 0.6V for low, 1.9V ~ 2.1V for high) remain identical.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications, select either the 74AHCT14PW-Q100,11 (Nexperia USA Inc.) or SN74AHCT14QPWRG4Q1 (Texas Instruments), both qualified to AEC-Q100 standard. The MC74VHCT14ADTR2G (onsemi) is also AEC-Q100 qualified and offers extended temperature range (-55°C ~ 125°C).

Q: What is the difference between Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube packaging?

A: These are distribution formats that do not affect electrical performance. Tape & Reel (TR) is standard for high-volume production. Cut Tape (CT) & Digi-Reel® provides flexibility for mixed-volume orders. Tube packaging is used for lower-volume distribution. Select based on procurement volume and handling requirements.

Q: Can I use the 74VHCT14AMTC or NLV74VHCT14ADTR2G for new designs?

A: No. Both parts carry obsolete product status, indicating discontinued manufacturing. While functionally equivalent, they should not be selected for new designs due to limited availability and potential supply chain discontinuation.

Q: Is the SN74AHCT14PWR suitable for applications requiring the full -40°C ~ 125°C temperature range?

A: No. The SN74AHCT14PWR operates within -40°C ~ 85°C. For applications requiring the full -40°C ~ 125°C range, select the 74AHCT14PW,118, 74AHCT14PW-Q100,11, 74VHCT14PW,118, or SN74AHCT14QPWRG4Q1 instead.

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